Traction-vehicle.



L. S. HACKNEY.

TRACTION VEHlCLE.

APPLICA'HOH mu) JUNE 24. I914.

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TRACTION VEHICLE.

APPLICATIONIFILED JUNE 24, 1914.

Patented June 6, 1916.

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L. S. HACKNEY.

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APPLICATION FILED JUNE 24. 1914- 1 186,310 Patented June 6, 1916.

3 SHEETS-SHEET 3v K Y z Leslte iiil'i'lzesqses LESLIE S. HACKNEY, OF ST. PAUL, MINNESOTA.

TRACTION-VEHICLE.

Specification of Letters Patent.

lamented June 6, 1916.

Application filed .Fuue 24, 1914. fierial No. 847,00;

1 an w/wm it may concern.

Be it known that I, Lusmn S. HACKNEY, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented new and useful Improvements in Traction-Vehicles, of which the following is a specification.

My invention relates to improvements in traction vehicles. Its object is to provide a traction vehicle having a self contained power truck adapted to propel and guide the vehicle, said truck being furnished with controlling devices within easy reach of an operator upon the vehicle.

In the accompanying drawings Figure 1 is a side elevation of my improved traction vehicle; Fig. 2 is a plan view thereof; Fig. 3 is an enlarged sectional view taken on the line 2- Q-=of Fig. 1 and Fig. 4 is an enlarged detail view partly broken away to show a particular part of my improved device.

Referring to the drawings, 1 have used the reference numeral to indicate draft frame of the vehicle and 11 the large gooseneck at the forward end thereof. Idler sup porting wheels 12 are mounted at the rear end of the frame- 10 and the power truck 13 is swiveled in the goosc neck 11 to carry the front end of said draft frame.

The truck consists of rocker-hcams 14: having an engine 15 and an endless tread 16 or like carryingdevice mounted upon said rocker-beams and driven by the engine 15 through suitable power t 'ansmitting devices, not shown. The beams 1d of the truck are pivotally attached to the arms 17 of the fork 18 which has a hollow post'Q swivcled in the bore 20 in the goose'neck 1.1. A rack quadrant 21 is mounted upon and secured by braces 22 to the arms 17 of said fork and a sleeve 23 is slidable within said post 19. The 'ack quadrant 21 is moved to turn the truck and guide the vehicle and the sleeve 28 is reciprccatcd to control the power transmitting mechanism of the truck. To perform these operations I provide a steering shaft 24 having a hand wheel 25 thereon. Said shaft is revoluble and slidable in the bearing 26 on the frame 10 and bearing- 27 on the goose-neck 11 and is provided with a portion 28 square in cross section, said portion being adapted to freely slide through a worm 29 between keepers 30 and turn said Worm when rotated. The shaft 31, revoluble in the upright bearing in the goose-neck 11 is supplied at its upper end Wlbl). a worm gear 33 which mesheswith the worm 29 and is also provided at its lower end with a spur gear 34- meshing with the rack quadrant 21 on the fork 18. The clevis 35 swiveled upon the forward end of said shaft 22% is slidably connected by the pintle 36 to the slotted arm" 37 of a bell crank 38 on the goose-neck. The outer arm 39 of said bell crank is bifurcated at its free end and opposed pins 40 secured in the branches of said arm slidably rest in the annular groove 41 in the collar 42 which is attached to the upper end of the sleeve Rotation of the hand wheel turns the shaft 24: and operates through the worm'29, gears and and rack 21 to guide the truck, and the reciprocation of said wheel causes the shaft 24 to be moved back and forth, thus rocking the bell crank 38 and raising and lowering the sleeve 23, whereby the power transmitting mechanism of the truck is uniformly actuated regardless of the angular relation between the truck and frame.

An inner sleeve l3 and a rod 44 within said inner sleeve are independently reciprocated in said sleeve.23 and are suitably connectcil with the engine controlling devices, not shown. for actuating the same, Said sleeve 43 and rod 4% are respectively provided with collars 45 and d6, similar to the collar 12 above mentioned, having horizontal annular grooves 17 and 48 therein. Bell cranks 4-9 and 50 mounted upon the goosencck 11 are furnisl'ied for said sleeve 13 and rod 4 f, each crank having one of its arms bifurcateiil, the branches thereof being provided with opposed pins 51 adapted to be slidahly retained in said grooves 47 and 48. The other arms of said cranks i9 and 50 are respectively connected by actuating rods 52 and 53 with the lovers 5 1- and 55 which are pivoted upon and frictionally engage op posit-e sides of the notched quadrant 56 on the frame.

Backward and forward movements of the lever reciprocate the. inner sleeve 43 and similar movements of the lever 55 reciprocate the rod 44.

Having now described my invention, What I claim as new and desire to protect by Letters Patent, is:

1. In a traction vehicle, a frame, support ing wheels on said frame, a truck carrying an engine for driving the same, a hollow support SW1 veled in said frame and mounted on "I steering l 7: lo and revoluhie on is imme, a n i i. on the shaft, controlling means 13555 g through said support to the power transmitting mechanism of the track, said contyolling means being in OPQlfliil'VQ connection with aired h the laoig iiroca- Z in connection. Wiih aft for iinming the Mud; when said nectiion i ll! said shaft and. actuate-2o the reoiprooaiion their-e012, geai'n a n connection with the shaft for turning l.

ino much when sale. shaft is rotated and gexible acti means for the engine controlling (luvlGQS passing i'hi'ough said support to positions accessible on the f mne.

In a traction vehicle, a frame; supporting; Wheels on said frame, a gooeemeok on the frame, a track, a pon ei' plant on ihe trnol ing ihe same, a fork having hollow pr Ring the heel; and, bra aches thereof bein pivotally mounted on said truck, a sLait sliilable and revoluble on il l oauhant on the fork, gca eonneetmg; ea rack Qillidt and shaft, adapted E il saicl truck (i .am a sleeve or said for];

2 HM aa ll \lblB joint whei'eby upon said sleeve is upon the rotation of ea iho like mo i in HA Rested Wish iilio tranen it sle yo and shall,

iproeation of ihe latter SGFl and lowered.

-. In a mam vehicle, a

Wheels on saiFi Tame,

li', a PM a1, Jne Union of saicl bra lilies, said post being; bwivele tically in the goose-neck and the branches thereof bein pivotally mounted on said truclqa steering 'shai't slidahle and. revoluble on the frame, a lfiitli qnmhunt on the fOl'li', gearing, connecting said rack qua lrant-anal shaft, adapted to turn saicl truck upon the rotation of said shaft, sleeve 01 the like ino able in tho bore of said fork and connected with the transmiiti'w inochm nisin oil ihe power plant, a ilk Hole, joint between said sleeve ind shaft, whereby upon reciprocation of the latter said sleeve is raised and lowered, an inner sleeve Within said first mentioned sleeve and an actuating rod on the frame flexibly connected with said inner sleeve for i'ecipi'ocat-in ill e same.

5. ii a traction vehicle, a fran 2, supporting Wheels on said frame, a goo -iie :l on the 111! 9, a ii'uclz. a power plant on the truck my driving s some, a foil; having l K'HZKlHES and a hollow post at the union of said in inches, said fork being si eled vertically in the goose-neck and he branches thereof being pivotally mounted on i i trunk, a steering shaft slidalile anal revoluiile on the frame, L rack quacli-anton the. fork, gearing, connect-in" said rack quaihant and sha'i, adapted to turn said truck upon the rotation of said Slmfll, sloeveoril'iolihemov able in the 011 of: said fork and connected. with the transmitting mechanism of the. pow-er plant, a flexible joint hoiiveen said Sleeve and sha l t. whereby upon reciprocation of the latter said. sle o lSlillHGLl HTHllUiCQL'UQl, an inner sleo 'e wii'hin said first in nilonocl sleeve :m l actnaiing: rods i'espooivii'ely aitachecl to sai l innoi' sleeve aml TOG for re cipmea n lllO sanio, the joints hetm lO'LlS and said shine and yous iercilole lo maintain the arijusiinenis ,iil truck is turned.

iony whereof, I have uigneel in}: to US specification in the presence of two suheci'ihingr wit eases.

Llfililll l S. HEXCKNE 

